Rotary explosion-engine.



PATBNTED JAN. 16, 1906.

E. EAETOLETTI. EOTAEY EXPLOSION ENGINE.

APPLICATION FILED FEB.3,1905.

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PETER BARTOLETTI, OF BROWNSVILLE, PENNSYLVANIA.

ROTARY EXPLOSION-ENGINE..

Specification of Letters Patent.

Patented Jan. 16, 1906.

.Application filed February 3, 1905. Serial No. 243,990.

To all whom t may concern:

Be it known that I, PETER BARTOLETTI, a subject of the King of Italy, and a resident of Brownsville, in the county of Fayette and State of Pennsylvania, have invented a new and Improved Rotary Explosion-Engine, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved rotary explosion-engine arranged to give impulses in quick succession to the piston-heads of the engine with a view to impart a continuous, powerful, and uniform rotary motion to the piston. s

The invention consists of novel Jfeatures and parts and combinations of the same, as will be more fully described hereinafter and then'pointed out in the claims.

Apractical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is an end elevation of the improvement, one of the cylinder-heads being removed and parts being in section. F ig.v 2 is a longitudinal sectional elevation of the same on the line 2 2 of Fig. 1. Fig. 3 is a perspective view of one of the piston-heads. Fig. 4 is a plan view of part of the piston, the heads being removed; and Fig. 5 is a sectional plan view of the gas admission, the section being on the line 5 5 of Fig. 1. The cylinder A of the engine is provided with a' base A', cylinder-heads A2 and A3, and an annular water-jacket A4, connected by a pipe B with a Water-supply and connected by a pipe B' with a lsuitable place of discharge, so that Water can circulate throughthe water-jacket to keep the evlinder cool. In the cylinder A is mounted to turn eoncentrically a piston C, secured on a shaft D, journaled in suitable bearings in the heads A2 and A:s of the cylinder, the shaft being connected in the usual manner with the machinery lo be driven.

Within the cylinder A are arranged opposilelhv-disposed nbutments E and E', reaching with their inner ends in contact with the peripheral face of the rim C' of the piston C,

and one side E2 of each abutment is in the' form. of an incline and the other or forward side E3 is curved to permit an openingI or outward-swinging movement of iston-heads F, l'ulcrnmed at F on the rim of the piston (Y, as plainly illustrated in the drawings.

Each of the piston-headgF is adapted to fold into a recess C2, formed in the peripheral face swung into an outward or radial on the rim C to prevent further opening of the piston-head at the time the outer end thereof is in contact with the inner face of the cylinder A. Each of the piston-heads F is-provided at its pivotal portion with heels F2, adapted to engage friction-rollers G and G', journaled on the cylinder-heads A2 and A3 and located somewhat in advance of the abutments E and E', so that the piston-head F when in a folded position and passing the corresponding abutment E or E' moves with its heels F2 in enga ement with the corresponding frictionrol er G or G', so that the piston-head is swung into an open position immediately inv advance of the corresponding abutment E or E.

In each of the abutments E and E is arranged an air admission H, extending through the rim of the cylinder A to the outside thereof, and the said air admission II opens into the cylinder A at the forward side E3 of the corresponding abutment E or E'. A check-valve I is arranged inthe air admission H to prevent return or outward iow of the gaseous mixture in front of the abutment whenever an explosion takes place.

Gas-chests J are arranged in the cylinder A and are secured to the inner faces of the cylinder-heads A2 and A3, the said chests extending under the rim of the piston (l, the said chests having gas-chambers J' and J?, adapted to connect with ports a, formed in the rim C' of the piston and opening into the cylinder A at the pivotal ends ofthe piston-heads F, it being understood that the chambers J' and J2 are arranged in advance of the abutments E andE, so that when a port. a moves in register with the'corresponding chamber J' or J`l then gas 'can pass from this (chamber into the cylinder at the time the eorrespomling cylinder-head Fswingsinto nnopen pps-|- tion bythe action of its` heel F" on the friet 1onroller G or G'. The chambers J and .I2 are connected by ports b with a gas-supply chamber K, formed on the cylinder-head A2, and this chamber K is .connected by a pipe K Y with a suitable gas-supply. A check-valve L controls the port b, so as to prevent a returnflow 'of the gas fromthe chamber J' to the chamber K when the explosion takes place.

When the engine is in-operation, gas passes 'of the rim C', and each piston-head E when lOO IIO

V of the corresponding piston-head at each abutment E or E igniting devices N and N arel provided, held in the rim of the cylinder immediately in advance of the forward ends E3 of th'e abutments E and E. Each igniting device is in the form of a sparking plug having contacts O and O', of which the contact O is flexible and normally out of engagement with the contact 0, but adapted to be thrown into engagement with the contact O by the piston-head F swinging into an outermost open position when coming in contact with the friction-roller G -or G. When the iston C rotates and the piston-head F finally eaves the Contact O', then the latter separates from the fixed contact O, thus producing a spark in the rear of the piston-head F and within the explosive mixture, so that the latter is ignited to give an impulse to the corresponding piston-head F to rotate the piston in the direction of the arrow a.

Frpm the cylinder' A lead exhausts c and c immediately in the rear of the abutments E and E', so that the products of combustion can pass out of the cylinder immediately previous to the piston-heads F swinging into a closed position when coming in contact at their free ends with the inclined sides -E2 of the'abutments E and E.

The operation is as follows: Vhen the several parts are in the position illustrated in Fig. 1, then the closed piston-heads F just leaving the abutmcnts E and E come in contact with the friction-rollers G and G for the piston-heads to open. At the same time the corresponding ports L register with the gaschambers J and J2, so that gas can pass into the cylinder A from the said chambers imme-v diately in the rear of the opening pistonheads F, and at the same time air passes into the cylinder A and mixes with the said gas to produce explosive mixtures. Each of the explosive mixtures is ignited by the spark from the igniting devices N and N as soon as the pistonheads F pass the flexible contact (Y, so that impulses are given to the said pistonheads to rotate the ypiston in the direction of the arrow a. T his operation is repeated for each set of piston-heads as they leave the abutment-s E and E', so that continuous impulses are given in quick succession to the piston-heads to impart a continuous, powerful, and uniform rotary motion to the piston B and the shaft l).

The products' of combustion between adl-jacent piston-heads are discharged from the ycylinder A by way A of the 'exhausts c and c, it being understood that at least two of the piston-heads are in an open or, outermost position between the abutments E and E to allow the proper exhaust without interference with the explosive mixture to be'ignited at the time.

Having thus described my invention, I claim as new and desire to secure by Letters PatentM l 1. A rotary explosion-engine comprising a cylinder, a piston mounted to turn concentricallytherein, an abutment in the cylinder, between the peripheral face of the piston and the inner face of the cylinder,- fulcrumed on the said piston an adapted to fold into recesses in the said peripheral face of the piston, means for opening the pistonheads after passing the abutment, an air admission in 'the abutment, opening into the cylinder at the forward end of the abutment, and a gas-supply chest held in the cylinder,

within the rimof the said piston, somewhat iston-heads in advance of the said abutment, the said'.

piston having ports adapted the said chest.

2. A rotary explosion-engine comprising a cylinder, a piston' mounted to turn concentrically therein, an abutment in the cylinder, between the peri heral face of the piston and the inner face or the cylinder, piston-heads lulcrumed on the said piston fold into recesses in the said periphera face of the piston, means for opening the pistonheads after passing the abutment, an air admission in the abutment, opening into the cylinder at the and a gas-supply chest held in the cylinder, within the rim of the said piston,'somewhat in advance of the said abutment,4 the said piston having ports adapted to' register with the said chest, the ports being located in the rear of the pivotal ends of the piston-heads.

3. A rotary explosion-engine comprising a cylinder, a piston mounted to turn concentrically therein, an abutment in the cylinder, between the peripheral face of the piston and the inner face of the cylinder, piston-heads fulcrumed on the said piston and adapted to fold into recesses in the said peripheral Jface of the piston, means for opening the 'pistonheads after passing the abutment, an air admission in the abutment, opening into the cylinder at the forward end of the abutment, a gas-supply chest held in the cylinder, within the rim of the said piston, somewhat in advance of the said abutment, the said piston having ports adapted to register with the said chest, and an electric ignitmg device extending into the abutment, the said i niting device having contacts adapted to e closed by the said i piston-heads.

forward end of the abutment,

to register with IOO cylinder, in advance di the said 'cylinder provide with a p 4. A rotary explosion-engine comprising a cylinder, a piston mounted to turn concentrically thereln, an abutment in the between the peripheral faceof t piston and the inner face o the cylinder, iston-heads fulciumed on the said piston a d ada ted to fold into recesses in the said per' hera face of the piston, means for opening the pist-0nheads after passing the abutment, an air admission in the abutment, opening into the cylinder at the forward end ofthe abutment, a gas-supply chest held in the cylinder, within the rim of the said piston, somewhat in advance of the said abutment, the said piston having ports adapted to register withI the said chest, and check-Valves for the said air admission and the said gas-supply chest.

5. A rotary eX loslon-engme comprising a cylinder,

abutments, a piston mounted to turn concenurality of spaced tncally in the said cylinder and provided with piston-heads fulcrumed on the rim of the piston and adapted to foldinto recesses in the rim on coming in contact with the abutments, means for opening the p1ston- 25 heads on leaving the abutments, an ignitmg device in front of each abutment, an exhaust in the rear of each abutment, a valved air admission in each abutment, and a gas-supply chest in the cylinder, provided. with spaced connected chambers arranged 1n ad- Vance Yof the abutments, the said piston having ports in the rear of the piston-heads and adapted to register with the said chambers.

In testimony whereof I have signed my 3 5 name to this specification in the presence of two subscribing witnesses.

PETER BART-OLETTI.

Witnesses:

THEO. G. HOSTER, EVERARD BOLTON MARSHALL. 

